Drivers
VIA Technologies, Inc. VL805 USB 3.0 主機控制器存在問題（修訂版 01）
我對 VL805 有一些問題。我嘗試按照此處的建議更新韌體https://askubuntu.com/questions/1162391/usb-3-0-pci-card。
[ 2.407086] usb 3-1.1: New USB device found, idVendor=090c, idProduct=1000, bcdDevice=11.00 [ 2.407087] usb 3-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 2.407088] usb 3-1.1: Product: USB DISK [ 2.407088] usb 3-1.1: Manufacturer: SMI Corporation…
[ 3.415543] usb 3-1-port1: cannot reset (err = -22) [ 3.415547] usb 3-1-port1: cannot reset (err = -22) [ 3.415549] usb 3-1-port1: cannot reset (err = -22) [ 3.415551] usb 3-1-port1: cannot reset (err = -22) [ 3.415552] usb 3-1-port1: cannot reset (err = -22) [ 3.415553] usb 3-1-port1: Cannot enable. Maybe the USB cable is bad?…
該卡從 BIOS 工作（它可以從插入卡的設備啟動）。我在 BIOS 中禁用了 iommu，因為此卡和 AMD iommu 似乎存在已知問題。僅供參考，CPU 虛擬化也已關閉。然而我看到
[ 1.041848] AMD-Vi: IOMMU performance counters supported [ 1.042086] iommu: Adding device 0000:00:01.0 to group 0…
[ 1.044209] AMD-Vi: Found IOMMU at 0000:00:00.2 cap 0x40我是否也必須禁用 iommu 驅動程序？
姓名：
Linux 5.0.0-37-lowlatency #40~18.04.1-Ubuntu SMP PREEMPT Thu Nov 14 12:51:01 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux機器資訊：
efi: EFI v2.60 by American Megatrends efi: ACPI 2.0=0xdd225000 ACPI=0xdd225000 SMBIOS=0xde48b000 ESRT=0xda62cf98 MEMATTR=0xda62b698 secureboot: Secure boot could not be determined (mode 0) SMBIOS 2.8 present. DMI: Micro-Star International Co., Ltd. MS-7B79/X470 GAMING PRO (MS-7B79), BIOS 1.10 03/29/2018 CPU0: AMD Ryzen 7 2700X Eight-Core Processor (family: 0x17, model: 0x8, stepping: 0x2)lspci：
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Root Complex 00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) I/O Memory Management Unit 00:01.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge 00:01.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe GPP Bridge 00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge 00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge 00:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe GPP Bridge 00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge 00:07.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge 00:07.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0 to Bus B 00:08.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) PCIe Dummy Host Bridge 00:08.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0 to Bus B 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 59) 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 51) 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 0 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 1 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 2 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 3 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 4 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 5 00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 6 00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 7 03:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] Device 43d0 (rev 01) 03:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] Device 43c8 (rev 01) 03:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c6 (rev 01) 16:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c7 (rev 01) 16:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c7 (rev 01) 16:02.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c7 (rev 01) 16:03.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c7 (rev 01) 16:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c7 (rev 01) 16:08.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 43c7 (rev 01) 18:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 15) 1a:00.0 USB controller: VIA Technologies, Inc. VL805 USB 3.0 Host Controller (rev 01) 1c:00.0 USB controller: ASMedia Technology Inc. ASM1143 USB 3.1 Host Controller 1d:00.0 VGA compatible controller: NVIDIA Corporation GP106 [GeForce GTX 1060 6GB] (rev a1) 1d:00.1 Audio device: NVIDIA Corporation GP106 High Definition Audio Controller (rev a1) 1e:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device 145a 1e:00.2 Encryption controller: Advanced Micro Devices, Inc. [AMD] Family 17h (Models 00h-0fh) Platform Security Processor 1e:00.3 USB controller: Advanced Micro Devices, Inc. [AMD] USB 3.0 Host controller 1f:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device 1455 1f:00.2 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 51)lsusb：
Bus 008 Device 003: ID 0451:8140 Texas Instruments, Inc. Bus 008 Device 002: ID 0451:8140 Texas Instruments, Inc. Bus 008 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 007 Device 007: ID 0451:ca01 Texas Instruments, Inc. Bus 007 Device 006: ID 0451:8142 Texas Instruments, Inc. TUSB8041 4-Port Hub Bus 007 Device 005: ID 0582:01e1 Roland Corp. Bus 007 Device 004: ID 258a:0001 Bus 007 Device 003: ID 1038:1720 SteelSeries ApS Bus 007 Device 002: ID 0451:8142 Texas Instruments, Inc. TUSB8041 4-Port Hub Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 003: ID 090c:1000 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) Flash Drive Bus 003 Device 002: ID 2109:3431 VIA Labs, Inc. Hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
顯然，我需要使用 iommu=soft 啟動才能使其工作。
我遇到了類似的問題，無法讓威盛 VL805 USB 3.0 板在帶有 AMD 780V 晶片組的 AMD Athlon 雙核上工作。將其替換為基於 NEC 720201 晶片組的板可解決問題。